These sleek glasses that come in a set of two give the illusion that the drink is defying gravity. If you really want to impress your guests, these glasses from Zwilling are a must. Not only does the drink and other contents appear to float, but your guests also don't have to worry about their fingers getting too hot or cold as the drink is insulated by the glass's double walls. Freeze or microwave the glasses without worrying about them breaking. Serve all your drinks in these glasses and it will be a guaranteed success.